The "mammals" data set in the "MASS" library contains the result of a study of sleep in mammal species. 1 2 Load the "mammals" data set into your R workspace. In Rstudio you can click on the "Packages" tab and then on the checkbox next to MASS. Without Rstudio, type >data(mammals.package-"MASS") Attach the mammals data frame to your R search path with > attach mammals) A random experiment is to choose one of the species listed in this data set. All outcomes are equally likely. You can obtain a list of the species in the event "body > 200" with the command > subset (mammals,body>200) What is the probability of this event, i.e., what is the probability that you randomly select a species with a body weight greater than 200 kg? You can obtain a count of the species with body weights greater than 200 kg, by >sum(body > 200)